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5.1.3.3 Design

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





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① Top cover 󹪞ap

② Top cover 󹪞ap; internal inscription

③ Display LEDs

④ Slide switch

⑤ Bottom cover 󹪞ap

⑥ Bottom cover 󹪞ap; internal inscription

⑦ DataMatrix code

⑧ Device identi󹪝cation label

5.1.3.4 Terminal assignment

Terminal Explanation

A1 L+

A2 N-

IN1 Sensor channel 1

IN2 Sensor channel 2

IN3 Non-󹪞oating sensor evaluation

3SK1 / 3RQ1 devices

5.1 3SK1 standard

SIRIUS 3SK1 Safety Relays and 3RQ1 Positively-Driven Coupling Relays

Equipment Manual, 05/2021, A5E02526190021A/RS-AE/005 55

Siemens SIRIUS 3SK1 Equipment Manual

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